Pump motor

Details Pump motor Pump motor

2006-01-13

2010-02-02

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S090000, C310S216016, C310S216053, C310S154450, C417S273000, C417S415000, C303S116400

Reexamination Certificate

active

07656063

ABSTRACT:
A rotor is accommodated in a yoke housing. Six magnets are arranged at equal intervals in the circumferential direction on the inner circumferential surface of the yoke housing so as to face the rotor. The core is generally cylindrical and includes an annular portion at an anti-output side and a balance at an output side. The magnets have six poles so as to effectively narrow a basal path width of the core in which the line of magnetic force concentrates most and magnetic saturation is likely to occur most. This reduces the diameter of the core. Therefore, the motor is effectively miniaturized in the axial direction and in the radial direction without complicating the formation steps.

REFERENCES:
patent: 5434463 (1995-07-01), Horski
patent: 5635778 (1997-06-01), Fujita et al.
patent: 6078118 (2000-06-01), Reinartz et al.
patent: 7332843 (2008-02-01), Tsukamoto
patent: 2003/0035716 (2003-02-01), Tanaka
patent: 2006/0290230 (2006-12-01), Tsukamoto
patent: 10-248225 (1998-09-01), None
Journal of Nippondenso Technical Disclosure, Reference No. 106-033 (Jan. 15, 1996).

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